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Career peak, derived from results

Peak Window Analyzer

Pick any IFBB Pro bodybuilder and see the years they were at their competitive peak, derived from their real contest record.

Analysis Aggregated from the full contest-results database; an analytical view, not a single record. Updated August 13, 2026
Prime vs prime

Stefan Ferdinand Kienzl

Stefan Ferdinand Kienzl does not have enough recorded contest placements to define a competitive peak window.

Browse the all-time rankings instead

Source: Fitness Volt Bodybuilding Database - 349,823 recorded results across 110,447 athletes

FITNESSVOLT.COM/BODYBUILDING